P0135 on the 2004 Honda Civic
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| 105 | 2005-04-28. Service bulletin. DTC (DIAGNOSTIC TROUBLE CODE) P0135, AIR FUEL RATIO SENSOR RELAY. *SC |
|---|---|
| 113004 | 2005-01-31. Service bulletin. 2004 CIVIC WITH DIAGNOSTIC TROUBLE CODE (DTC) P0135 (UPDATE). REQUEST FOR PARTS. *NM |
| 09082004 | 2004-11-24. Service bulletin. REQUEST FOR PARTS & FREEZE DATA. MALFUNCTION INDICATOR LIGHT COMING ON WHILE DIAGNOSTIC TROUBLE CODE P0135 IS DISPLAYED. *TT |
3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.